how to add custom keyboard hot keys to createListPlugin and createHeadingPlugin

[johnpatrick254]

It want to use hotkeys 'mod+opt+7' for ordered list and 'mod+opt+8' for unorded list, how can I achieve that, also hotkeys for heading work only upto h3 (mod+opt+3),nothing happens when i press 'mod+opt+4' all the way to six despite setting the level options to 6 in createHeader plugin
createHeadingPlugin({ options:{ levels:6 } })